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Shareholders' Equity (Summary of Activity Related to Restricted Stock Units) (Detail) | 3 Months Ended
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Mar. 31, 2017 $ / shares shares
Restricted Stock Units (RSUs) [Member] |
Unvested shares |
Outstanding, shares at December 31, 2016 | 834,634
Granted | 274,697
Forfeited | (4,345)
Vested and issued | (351,786)
Vested and unissued | (22,692)
Outstanding at March 31, 2017 | 237,141
Outstanding, shares at March 31, 2017 | 730,508
Weighted-Average Grant Date Fair Value Per Share |
Granted | $ / shares | $ 85.51
Performance Shares [Member] |
Unvested shares |
Outstanding, shares at December 31, 2016 | 284,762
Granted | 140,077
Vested and issued | (81,864)
Outstanding, shares at March 31, 2017 | 342,975
Weighted-Average Grant Date Fair Value Per Share |
Granted | $ / shares | $ 86.23
Progressive Waste Solutions Ltd. [Member] | Restricted Stock Units (RSUs) [Member] |
Unvested shares |
Outstanding at December 31, 2016 | 179,489
Cash settled | (17,342)
Outstanding at March 31, 2017 | 162,147
Progressive Waste Solutions Ltd. [Member] | Performance Shares [Member] |
Unvested shares |
Outstanding at December 31, 2016 | 61,994
Cash settled | (5,304)
Outstanding at March 31, 2017 | 56,690
Deferred Compensation, Share-based Payments [Member] |
Unvested shares |
Outstanding at December 31, 2016 | 45,964
Granted | 3,150
Cash settled | (2,400)
Outstanding at March 31, 2017 | 46,714

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- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(3) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that vested and issued during the reporting period. + References No definition available. + Details
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